Ok guys. This has been bugging me a long while now, so help would be much appreciated. Now I’m convinced the movie I am looking for was called ” the go cart kids” but can never find nothing on it. It was 80’s American very goonie esque. Kids think they find a ” lochness type “monster in a cave but turns out to be an oil pump. That’s all I can remember. Cheers
The Quest aka Frog Dreaming aka The Go-Kids (1986) – http://www.imdb.com/title/tt0091810/
Lots more on the movie on the “Branded in the 80s” website – http://brandedinthe80s.com/tag/lake-monster